Definition of "disease" in English

noun

1. (medicine) An abnormal condition of a human, animal or plant that causes discomfort or dysfunction; distinct from injury insofar as the latter is usually instantaneously acquired.

   • The tomato plants had some kind of disease that left their leaves splotchy and fruit withered.
   • The instability, injustice, and confusion, introduced into the public councils, have, in truth, been the mortal diseases under which popular governments have every where perished; […]

2. (figuratively) Any abnormal or harmful condition, as of society, people's attitudes, way of living etc.

3. A lack of ease; uneasiness; trouble; vexation; disquiet.

verb

1. (obsolete) To cause unease; to annoy, irritate.

2. To infect with a disease.